In astrology, the dot in the circle is a symbol of the sun,
but it's also said to be an androgynous symbol in that the
point at the center represents the phallus and the circle
represent the vagina, or female principle, thus making this
symbol yet another symbolical synonym of Solomon's Seal.

Churchward, a Freemason, informs us in his book "The
Acrcana of Freemasonry", that the point in the center of
circle is also a symbol of the
All-Seeing eye: "It was previously stated that the Pole Star
North was symbolized by the one All-Seeing Eye, also called
the Great Judge of All; also that the dot or Star a the summit
of a Cone, or Triangle, was the Ideograph for Horus, god of
the Pole Star North. The point in the centre of a Circle is
equal to the point at the top of the Triangle, and this Glyph
is equivalent to the Eye; the two are synonymous." (Churchward,
The Arcana of Freemasonry, page 188)

Thus, if the dot in the circle is a emblematically analogous or
synonymous with the All-Seeing Eye, and if, further,
the Blazing Star, Eastern Star, or inverted pentagram signifies
the All-Seeing Eye, it follows that if the Eastern Star is
synonymous with the Hexagram, then, likewise, the circled
dot is synonymous with the hexagram, or Solomon's Seal.
Also, since the hexagram's numerological signature is
6,6,6, perhaps it's true
to say that in making the Obelisk of the Washington Monument 666 feet,
the
hexagram was thereby numerologically suggested also.

Interestingly, then, the famed crop circle of July 11, 2001, at the
Gog Magog hills area in the U.K., which was laid down just
two months to the day prior to the 9-11 terror attack, exhibited the
exact same numerological signature as the Washington monument. The crop
circle, consisting at first of simply a dot in a circle, had a diameter
of 666 feet. The width of the circle surrounding the dot was 18
feet (6 + 6 + 6):